blow-boater
n.— «Powerboat owners are habitually dismissive of sailors as preppy, penurious or just plain nerds, referring to them as “blow-boaters” or “snailboaters.”» —“Power Hungry” by John Clemans MotorBoating Oct. 20, 2008. (source: Double-Tongued Dictionary)
Further reading
The word preppy has undergone a considerable evolution since Boomers first used it to describe attire that reflects a conservative, polished, East-coast prep school look. For middle-schoolers today, preppy connotes an entirely different aesthetic:...
Mark in Bismarck, North Dakota, spent years as a sailor, and wonders about the term sea painter, meaning “a rope attached to a lifeboat.” Why painter? The word may derive from Middle French pendeur meaning “a kind of rope that...